שמואל ב יט:ה פירוש: רש״י

Covered his face. [Yononson translates:] "Covered his face" in the manner of mourners.

Covered. As [we find]: "He wrapped his face with his coat",³Melochim I, 19:13. "It is wrapped up in a cloth".⁴Shmuel I, 21:10.